Vol. 5 Issue 4 CONTENTS 1996(Click on Title for Abstract)

Differential Enumeration Of Intact And Damaged Marine Planktonic Bacteria Based On Cell Membrane Integrity
T. Naganuma

Toxic Blooms Of Cyanobacteria In The Patos Lagoon Estuary, Southern Brazil
J.S. Yunes, P.S. Salomon, A. Matthiensen, K.A. Beattie, S.L. Raggett &
G.A. Codd

Heat Shock Protein Response To Thermal Stress In The Asiatic Clam, Corbicula fluminea
I.A. Nascimento, K.L. Dickson & E.G. Zimmerman

Detection Of Environmental Impacts By Bottom Trawling On Posidonia oceanica (L.) Delile Meadows: Sensitivity Of Fish And Macroinvertebrate Communities
P. Sánchez-Jerez & A.A. Ramos-Esplá

A Field Investigation Of The Relationship Between Zinc And Acid Volatile sulfide Concentrations In Freshwater Sediments
G.T. Ankley, K. Liber, D.J. Call, T.P. Markee, T.J. Canfield & C.G. Ingersoll

On Representative Lake Data And Management Models For Lake Ecosystems - A Discussion Of Basic Concerns
L. Hakanson

Commentary

Ecosystem Integrity And The "Fish Wars"
L. Westra